Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds no behavioral context such as required Search Console permissions, what 'submitted' means, or any pagination/return caveats; the revision string is internal metadata, not behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The main sentence is short and front-loaded, which is good. However, the trailing 'Tools revision: 5c9bea8f.' does not help an agent invoke the tool and slightly dilutes an otherwise clean description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists, so return values need not be described, and annotations cover the safety profile. Still, for a one-parameter Search Console listing tool, the description leaves out siteUrl format and does not route the agent away from gsc_list_sites.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate, but it only says 'for a site.' It does not clarify the expected siteUrl format, such as whether it should be a URL, a sc-domain: property, or a verified property identifier.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb and resource: 'List submitted sitemaps for a site.' It clearly distinguishes this from gsc_submit_sitemap and gsc_list_sites by focusing on sitemaps rather than sites or submission actions.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

It does not explain when to use this tool versus siblings like gsc_list_sites, gsc_submit_sitemap, or gsc_inspect_url. The only usage signal is the implied 'for a site' context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.